Não informado. Tropical Soils Research Program, Annual Report. North Carolina State University, Soil Science Department.
Chicagoスタイル(17版)引用形式Não informado. Tropical Soils Research Program, Annual Report. Raleigh, NC: North Carolina State University, Soil Science Department.
MLA(8版)引用形式Não informado. Tropical Soils Research Program, Annual Report. North Carolina State University, Soil Science Department.
警告: この引用は必ずしも正確ではありません.